445265562500 has 84 divisors (see below), whose sum is σ = 1062553586640. Its totient is φ = 161914500000.

The previous prime is 445265562493. The next prime is 445265562517. The reversal of 445265562500 is 5265562544.

It is a super-2 number, since 2×445265562500² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 363671 + ... + 1011329.

It is an arithmetic number, because the mean of its divisors is an integer number (12649447460).

Almost surely, 2^445265562500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445265562500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531276793320).

445265562500 is an abundant number, since it is smaller than the sum of its proper divisors (617288024140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445265562500 is an equidigital number, since it uses as much as digits as its factorization.

445265562500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647704 (or 647677 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 445265562500 its sum of digits (44), we get a palindrome (445265562544).

The spelling of 445265562500 in words is "four hundred forty-five billion, two hundred sixty-five million, five hundred sixty-two thousand, five hundred".